Mitsubishi Electric PAA error codes
Codes
- 1501Error codeSpecifications: Freezing/overheating protection is working 1. Freezing protection (Cooling mode) The unit is in six-minute resume prevention mode if pipe <liquid or condenser/evaporator> temperature stays under -15˚ C [5˚ F] for three minutes after the compressor started. Abnormal if it stays under -15˚ C [5˚ F] for three minutes again within 16 minutes after six-minute resume prevention mode. 2. Overheating protection (Heating mode) The units are in six-minute resume prevention mode if pipe < Liquid or condens
- 1503Error codeSpecifications: temperature of over 70˚ C [158˚ F] is detected again within 10 minutes after six-minute resume prevention mode. Pipe temperature <Cooling mode> Detected as abnormal when the pipe temperature is not in the cooling range 3 minutes after compressor start and 6 minutes after the liquid or condenser/evaporator pipe is out of cooling range. NOTE 1) It takes at least 9 minutes. to detect. 2) Abnormality P8 is not detected in drying mode.
- 2502Error codeContact failure of drain float switch (CN4F) 1. Extract when the connector of drain float switch is disconnected. (3 and 4 of connector CN4F is not short-circuited.) 2. Constantly detected during operation.
- 4109Error codeIndoor controller board Abnormal if data cannot be read normally from the nonvolatile memory of the indoor controller board.
- 5101Error codeRoom temperature thermistor (TH1) 1. The unit is in three-minute resume prevention mode if short/ open of thermistor is detected. Abnormal if the unit does not reset normally after three minutes. (The unit returns to normal operation, if it has normally reset.) 2. Constantly detected during cooling, drying and heating operation Short: 90˚ C [194˚ F] or more Open: -40˚ C [-40˚ F] or less
- 5102Error codePipe temperature thermistor/Liquid (TH2) 1. The unit is in three-minute resume prevention mode if short/ open of thermistor is detected. Abnormal if the unit does not reset normally after three minutes. (The unit returns to normal operation, if it has normally reset.) 2. Constantly detected during cooling, drying, and heating (except defrosting) operation.
- 5105Error codeNOTE 3) It takes at least 27 minutes to detect abnormality. 4) It excludes the period of defrosting (Detection restarts when defrosting mode is over) Heating range: 3˚ C (5.4˚ F) [ (TH5-TH1) Abnormality of pipe temperature thermistor / Condenser-Evaporator (TH5) 1. The unit is in three-minute resume protection mode if short/ open of thermistor is detected. Abnormal if the unit does not get back to normal within three minutes. (The unit returns to normal operation, if it has normally reset.) 2. C
- 6201Error codeRemote controller transmission error (E3) / signal receiving error (E5)
- 6203Error codeSpecifications: 1. Abnormal if remote controller could not find blank of transmission path for six seconds and could not transmit. (Error code: E3) are subject to change without notice.
- 6831Error codeRemote controller transmission error (E0) / signal receiving error (E4)
- 6832Error codeRemote controller control board
- 6833Error codeSpecifications: 1. Abnormal if data cannot be read normally from the nonvolatile memory of the remote controller control board. (Error code: E1) 2. Abnormal if the clock function of remote controller cannot be operated normally. (Error code: E2) are subject to change without notice. by inferior Cause • When LED 1 on indoor controller board is also off. 1. Power supply of rated voltage is not supplied to outdoor unit 2. Defective outdoor controller circuit board 3. Power supply of 208~230V is not supplied to ind
- 6834Error code1. Abnormal if main or sub remote controller can not receive normally any transmission from indoor unit of refrigerant address “0” for three minutes. (Error code: E0) 2. Abnormal if sub remote controller could not receive for any signal for two minutes. (Error code: E0) 3. Abnormal if indoor controller board can not receive normally any data from remote controller board or from other indoor controller board for three minutes. (Error code: E4) 4. Indoor controller board cannot receive any signal
- 6840Error code2. Remote controller receives transmitted data at the same time, compares the data, and when detecting it, judges different data to be abnormal 30 continuous times. (Error code: E3) 3. Abnormal if indoor controller board could not find blank of transmission path. (Error code: E5) 4. 2 Indoor controller board receives transmitted data at the same time, compares the data,and when detecting it, judges different data to be abnormal 30 continuous times. (Error code: E5) Indoor/outdoor unit communicat | Indoor/outdoor unit communication error (Transmitting error) Abnormal if “1” receiving is detected 30 times continuously though indoor controller board has transmitted “0”.
- E0Error codeRemote controller transmission error (E0) / signal receiving error (E4)
- E1Error codeRemote controller control board
- E2Error codeSpecifications: 1. Abnormal if data cannot be read normally from the nonvolatile memory of the remote controller control board. (Error code: E1) 2. Abnormal if the clock function of remote controller cannot be operated normally. (Error code: E2) are subject to change without notice. by inferior Cause • When LED 1 on indoor controller board is also off. 1. Power supply of rated voltage is not supplied to outdoor unit 2. Defective outdoor controller circuit board 3. Power supply of 208~230V is not supplied to ind
- E3Error codeRemote controller transmission error (E3) / signal receiving error (E5)
- E4Error code1. Abnormal if main or sub remote controller can not receive normally any transmission from indoor unit of refrigerant address “0” for three minutes. (Error code: E0) 2. Abnormal if sub remote controller could not receive for any signal for two minutes. (Error code: E0) 3. Abnormal if indoor controller board can not receive normally any data from remote controller board or from other indoor controller board for three minutes. (Error code: E4) 4. Indoor controller board cannot receive any signal
- E5Error codeSpecifications: 1. Abnormal if remote controller could not find blank of transmission path for six seconds and could not transmit. (Error code: E3) are subject to change without notice.
- E6Error code2. Remote controller receives transmitted data at the same time, compares the data, and when detecting it, judges different data to be abnormal 30 continuous times. (Error code: E3) 3. Abnormal if indoor controller board could not find blank of transmission path. (Error code: E5) 4. 2 Indoor controller board receives transmitted data at the same time, compares the data,and when detecting it, judges different data to be abnormal 30 continuous times. (Error code: E5) Indoor/outdoor unit communicat
- E7Error codeIndoor/outdoor unit communication error (Transmitting error) Abnormal if “1” receiving is detected 30 times continuously though indoor controller board has transmitted “0”.
- FBError codeIndoor controller board Abnormal if data cannot be read normally from the nonvolatile memory of the indoor controller board.
- P1Error codeRoom temperature thermistor (TH1) 1. The unit is in three-minute resume prevention mode if short/ open of thermistor is detected. Abnormal if the unit does not reset normally after three minutes. (The unit returns to normal operation, if it has normally reset.) 2. Constantly detected during cooling, drying and heating operation Short: 90˚ C [194˚ F] or more Open: -40˚ C [-40˚ F] or less
- P2Error codePipe temperature thermistor/Liquid (TH2) 1. The unit is in three-minute resume prevention mode if short/ open of thermistor is detected. Abnormal if the unit does not reset normally after three minutes. (The unit returns to normal operation, if it has normally reset.) 2. Constantly detected during cooling, drying, and heating (except defrosting) operation.
- P4Error codeContact failure of drain float switch (CN4F) 1. Extract when the connector of drain float switch is disconnected. (3 and 4 of connector CN4F is not short-circuited.) 2. Constantly detected during operation.
- P6Error codeSpecifications: Freezing/overheating protection is working 1. Freezing protection (Cooling mode) The unit is in six-minute resume prevention mode if pipe <liquid or condenser/evaporator> temperature stays under -15˚ C [5˚ F] for three minutes after the compressor started. Abnormal if it stays under -15˚ C [5˚ F] for three minutes again within 16 minutes after six-minute resume prevention mode. 2. Overheating protection (Heating mode) The units are in six-minute resume prevention mode if pipe < Liquid or condens
- P8Error codeSpecifications: temperature of over 70˚ C [158˚ F] is detected again within 10 minutes after six-minute resume prevention mode. Pipe temperature <Cooling mode> Detected as abnormal when the pipe temperature is not in the cooling range 3 minutes after compressor start and 6 minutes after the liquid or condenser/evaporator pipe is out of cooling range. NOTE 1) It takes at least 9 minutes. to detect. 2) Abnormality P8 is not detected in drying mode.
- P9Error codeNOTE 3) It takes at least 27 minutes to detect abnormality. 4) It excludes the period of defrosting (Detection restarts when defrosting mode is over) Heating range: 3˚ C (5.4˚ F) [ (TH5-TH1) Abnormality of pipe temperature thermistor / Condenser-Evaporator (TH5) 1. The unit is in three-minute resume protection mode if short/ open of thermistor is detected. Abnormal if the unit does not get back to normal within three minutes. (The unit returns to normal operation, if it has normally reset.) 2. C